Global sustained perturbations in a backward-facing step flow

被引：4

作者：

Marquet, Olivier ^{[1
]}

Sipp, Denis ^{[1
]}

机构：

[1] ONERA DAFE, F-92190 Meudon, France

来源：

SEVENTH IUTAM SYMPOSIUM ON LAMINAR-TURBULENT TRANSITION | 2010年 / 18卷

关键词：

D O I：

10.1007/978-90-481-3723-7_91

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The two-dimensional stability of a backward-facing step flow is investigated at the low Reynolds number Re = 500 A method is proposed to determine the optimal energy growth of linear perturbations sustained by harmonic forcing The maximum sustained energy growth is of order 10(5) at frequency f(s) similar to 0 08 and is related to convective instabilities growing in the shear layer of the separated flow.

引用

页码：525 / 528

页数：4

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